<!DOCTYPE html>
<html lang="en">
<head>
    <title>测试验证</title>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
</head>
<body>
<form method="post" action="pay_operation.php">
    名字: <input type="text" name="str">
    年龄: <input type="text" name="age">
    <input type="submit" value="提交">
</form>
</body>
</html>